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422:), causing them to drop their moisture in the form of rain or snowfall onto the Cascades. As a result, the west side of the North Cascades experiences high precipitation, especially during the winter months in the form of snowfall. Because of
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period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris. The U-shaped cross section of the river valleys is a result of recent glaciation.
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danger. During winter months, weather is usually cloudy, but, due to high pressure systems over the
Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.
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originating in the
Pacific Ocean travel northeast toward the Cascade Mountains. As fronts approach the North Cascades, they are forced upward by the peaks of the Cascade Range (
447:. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to the various climate differences.
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in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the North
Cascades area.
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is significant as the summit rises 6,400 feet (2,000 meters) above the Skagit River in 2.5 miles (4 km). Precipitation
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The history of the formation of the
Cascade Mountains dates back millions of years ago to the late
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Pyramid Peak was first climbed in 1931 by
William Degenhardt and Herbert Strandberg of the
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The North
Cascades features some of the most rugged topography in the
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386:. The approach is made via the Pyramid Lake Trail, starting near
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from the mountain drains into Diablo Lake and Skagit River.
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Cascade alpine guide, Volume 2: Stevens Pass to Rainy Pass
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is a 7,189-foot (2,191-metre) mountain summit in the
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633:Geology of the North Cascades: A Mountain Mosaic
299:1931, William Degenhardt and Herbert Strandberg
631:Rowland W. Tabor, Ralph Albert Haugerud, 1999,
466:persisted. In addition, small fragments of the
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16:Mountain in Washington (state), United States
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443:with craggy peaks, spires, ridges, and deep
414:climate zone of western North America. Most
33:Pyramid Peak seen from Diablo Lake Overlook
698:The Natural History of Puget Sound Country
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568:United States Department of the Interior
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747:Mountains of Whatcom County, Washington
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762:North Cascades of Washington (state)
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559:Geographic Names Information System
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700:. University of Washington Press.
371:than for its absolute elevation.
529:Geology of the Pacific Northwest
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191:Pyramid Peak (the United States)
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737:Mountains of Washington (state)
564:United States Geological Survey
524:Geography of the North Cascades
410:Pyramid Peak is located in the
347:, one of the reservoirs on the
161:Show map of Washington (state)
1:
767:North American 2000 m summits
194:Show map of the United States
742:North Cascades National Park
715:North Cascades National Park
482:about 50 million years ago.
341:North Cascades National Park
237:North Cascades National Park
49:7,189 ft (2,191 m)
696:Kruckeberg, Arthur (1991).
82:0.28 mi (0.45 km)
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609:"Pyramid Peak - 7,182' WA"
588:"Pyramid Peak, Washington"
110:48.6745180°N 121.1461335°W
464:volcanic igneous activity
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664:Beckey, Fred W. (1996).
343:. It rises steeply from
115:48.6745180; -121.1461335
472:continental lithosphere
339:. It is located within
59:142 ft (43 m)
720:Pyramid Peak weather:
635:, Mountaineers Books,
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392:North Cascades Highway
158:Location in Washington
717:National Park Service
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355:destinations such as
456:North American Plate
384:Seattle Mountaineers
233:Protected area
106: /
424:maritime influence
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373:Topographic relief
361:Paul Bunyans Stump
39:Highest point
722:Mountain Forecast
675:978-0-89886-838-8
412:marine west coast
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709:External links
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592:Peakbagger.com
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554:"Pyramid Peak"
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480:North Cascades
462:, episodes of
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365:Snowfield Peak
329:North Cascades
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306:Easiest route
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616:. Retrieved
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571:. Retrieved
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478:created the
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406:Pyramid Peak
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349:Skagit River
325:Pyramid Peak
324:
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295:First ascent
278:Type of rock
265:
245:Parent range
185:Pyramid Peak
152:Pyramid Peak
22:Pyramid Peak
487:Pleistocene
485:During the
345:Diablo Lake
113: /
101:121°08′46″W
88:Coordinates
65:Parent peak
731:Categories
643:, page 56.
618:2021-11-25
573:2021-11-25
535:References
388:Diablo Dam
333:Washington
312:Scrambling
266:Diablo Dam
217:Washington
98:48°40′28″N
72:(7,386 ft)
55:Prominence
428:avalanche
331:Range of
126:Geography
78:Isolation
45:Elevation
502:See also
496:faulting
476:terranes
353:climbing
289:Climbing
258:Topo map
474:called
468:oceanic
435:Geology
398:Climate
390:on the
369:terrain
316:class 3
272:Geology
227:Whatcom
205:Country
672:
639:
492:Uplift
452:Eocene
377:runoff
363:, and
283:gneiss
223:County
213:State
670:ISBN
637:ISBN
494:and
470:and
263:USGS
733::
684:^
648:^
611:.
600:^
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543:^
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359:,
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318:)
314:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
